Bed-bottom



UNITED STATES PATENTy OFFICE.

HENRY A. COOKE, OF CHARLESTOWN, MASSACHUSETTS.

BED-BOTTOM.

Speciiicaton forming part ofLetters Patent O. 51,4127, dated December12, 1865.

hereby declare the same to be fully described in the followin gspecitcation and represented in the accompanying drawings, 0f which-Figure 1 is atop view, Fig. 2 alongitudinal section, and Fig. 3 atransverse and central section, of my improved bedstead. Fig. 4 is across-section of it, taken through one of the transverse bars of itssupporting-frame.

1n this bedstead the bed-frame, or bottom, as it is termed, is composedof a series ot long exible elastic slats, a ay a, 85e., and twotransverse bars, b I), the said slats being arranged parallel to eachother and at equal distances asunder, and on the two bars b b, to whichthey are fastened, the whole being placed .within the frame A of abedstend in manner as shown in the drawings.

' To each end of each of the trans-verse bars b a metallic supporter, C,having the form in vertical section as shown in Fig. 3',is fastened, thesaid supporter having a projection, e, and a cam or incline, d, whichare arranged with reference to one another and the end of the bar inmanner as shown in the said drawings. l

Directly over each of the said supporters C there is a loop-supporter,D, constructed with a notch, e, and a cani or inclined surface,f, thesame being arranged as shown in Fig. 3, and such supporter D is fastenedto and so as to project from the inner face of one ofthe side rails, gg, of the bedstead-frame.

A ring, F, made of vulcanized india-rubber, is placed in the notch e,and hangs therefrom and serves as an elastic stirrup to receive the partC and to draw the two inclined surfaces or cams d and finto contact.

Vhile the :inclined planes df serve as stops to arrest the movementofthe bed-bottom when drawn upward by the springs, they also operate atthe same time to centraline it and keep it from swaying laterally whilethe bed may be in the act of being made up.

By my arrangement the bed-bottom is supported by four springs only,which are so disposed, and the bottom is so made, that there can be nosuch uncomfortable sagging or sinking` of the bottom at its middle orother part, as often takes' place when each of the longitudinal slats issupported at its two ends by springs hung from the head and foot rails.

I claimlpThe combination as well as the arrangement ofthe cams orinclinesdf, the supporters C D, and their annular springs F with theAbedstead-frame and the bed-bottom constructed of the longitudinal slatsand the transverse bars, arranged together as specified.

2. The combination of the two cross-bars b b, their supporters C D, andtheir springs F with the series of longitudinal slats, and with thebedstead-fraine, arranged as specitied.

HENRY A. COOKE.

Witnesses R. H. EDDY, FREDERICK CURTIS.

